/*
 * Copyright (C) 2013 Brett Wooldridge
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.zaxxer.nuprocess;

import java.nio.ByteBuffer;

/**
 * Convenience base class for a {@link NuProcessHandler} with default methods
 * that can be overridden.
 *
 * @author Brett Wooldridge
 */
public abstract class NuAbstractProcessHandler implements NuProcessHandler {
    /**
     * {@inheritDoc}
     */
    @Override
    public void onPreStart(NuProcess nuProcess) {
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onStart(NuProcess nuProcess) {
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onExit(int statusCode) {
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onStdout(ByteBuffer buffer, boolean closed) {
        // Ensure we consume the entire buffer in case it's not used.
        buffer.position(buffer.limit());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void onStderr(ByteBuffer buffer, boolean closed) {
        // Ensure we consume the entire buffer in case it's not used.
        buffer.position(buffer.limit());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean onStdinReady(ByteBuffer buffer) {
        return false;
    }
}
